Backtrace

WARNING: CPU: 9 PID: 1 at drivers/gpu/drm/ttm/ttm_bo.c:437 ttm_bo_release+0x2c6/0x310 [ttm]
Modules linked in: snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set rfkill nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter intel_rapl_msr intel_rapl_common binfmt_misc sunrpc snd_hda_codec_realtek snd_hda_codec_generic ppdev ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec edac_mce_amd snd_usb_audio snd_hda_core snd_usbmidi_lib kvm_amd snd_hwdep snd_rawmidi snd_seq uvcvideo snd_seq_device vfat fat kvm snd_pcm videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 irqbypass videobuf2_common snd_timer
 rapl wmi_bmof pcspkr k10temp i2c_piix4 videodev snd soundcore mc xpad joydev parport_pc ff_memless parport gpio_amdpt gpio_generic zram ip_tables hid_uclogic amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched i2c_algo_bit drm_kms_helper cec crct10dif_pclmul crc32_pclmul crc32c_intel drm ghash_clmulni_intel ccp sp5100_tco r8169 wmi fuse
CPU: 9 PID: 1 Comm: systemd Not tainted 5.13.4-200.fc34.x86_64 #1
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./A320M-HD, BIOS P5.40 07/09/2019
RIP: 0010:ttm_bo_release+0x2c6/0x310 [ttm]
Code: e8 ff 07 45 dc e9 c5 fd ff ff 49 8b 7e 98 b9 30 75 00 00 31 d2 be 01 00 00 00 e8 35 29 45 dc 49 8b 46 e8 eb 9e 48 89 e8 eb 99 <0f> 0b 41 c7 86 84 00 00 00 00 00 00 00 49 8d 76 08 31 d2 4c 89 ef
RSP: 0018:ffffb8ec0004fd70 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff9c4591905ac0
RBP: ffff9c45919052b0 R08: ffff9c45eeb9b0a8 R09: ffff9c45caec8eb8
R10: ffff9c458e1a9ce8 R11: 0000000000000001 R12: ffff9c45d24c4620
R13: ffff9c45d24c4458 R14: ffff9c45d24c45b8 R15: ffff9c45cca1cf00
FS:  00007ff59e80e340(0000) GS:ffff9c488ec40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000557175bde170 CR3: 00000001041f2000 CR4: 00000000003506e0
Call Trace:
 amdgpu_bo_unref+0x1a/0x30 [amdgpu]
 amdgpu_gem_object_free+0x20/0x30 [amdgpu]
 drm_gem_object_release_handle+0x6b/0x80 [drm]
 ? drm_gem_object_handle_put_unlocked+0xd0/0xd0 [drm]
 idr_for_each+0x4e/0xc0
 drm_gem_release+0x1c/0x30 [drm]
 drm_file_free.part.0+0x1e3/0x250 [drm]
 drm_release+0x65/0x110 [drm]
 __fput+0x94/0x240
 task_work_run+0x65/0xa0
 exit_to_user_mode_prepare+0x237/0x240
 syscall_exit_to_user_mode+0x18/0x40
 do_syscall_64+0x4d/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff59f48d9b7
Code: 00 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 33 fc ff ff
RSP: 002b:00007ffedb18a598 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007ff59e80e0f8 RCX: 00007ff59f48d9b7
RDX: 0000557175bde160 RSI: 0000557175845010 RDI: 0000000000000086
RBP: 0000000000000086 R08: 0000557175bdca40 R09: bb322438fdb365d2
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000557175730300 R14: 00005571756eb0f9 R15: 0000557175be17d0